When Rattrap and Cheetor are hauling equipment at the beginning of the episode you can see a stuffed panda in the background.
Megatron: Enter the dragon!
Megatron: "It seems victory eludes me yet again. But beware the dragon's wrath! Vengence shall be mine!"
Blackarachnia: "The only thing worse that a salesman is a pushy Predacon. Autoguns, on-line."
Blackarachnia: You'll live to regret this, Crab Legs!
Rampage: I regret everything, my sweet.
RATTRAP: Always collecting scrap...Eh, I must be a pack-rat.
MEGATRON: Sometimes deception is the better part of valor.
Megatron (to Tarantulus): I can suffer your treachery, Lieutenant, but not your incompetence!! Treachery requires NO mistakes!
Megatron: "We've been expecting you."
Notice how Blackarachnia hits Rampage with a giant metal bar... without using her hands! Telekenetic? I think so.
Megatron captures the Spark of his "namesake" (G1 Megatron) and mutates into a Transmetal 2 dragon. At the end of the episode, Megatron does not return the Spark.
Eric Torin is an animator for Mainframe.
Rattrap: "I must be a pack rat."
During the run of the Beast Wars line, the organizers of the original Transformers convention, called "Botcon" at the time, produced at least two convention exclusive figures called "Pack Rat", which were both repaints of Rattrap's original and Transmetal molds. Rattrap's statement is a nod to this exclusive figure.
Megatron: Enter the Dragon
Megatron says the name of this 1973 movie starring Bruce Lee when he first becomes a Transmetal 2.